Hi OP, I'm bi myself, I feel you're being given a hard time. But otoh your words are pretty ambiguous.
When you say being gay 'isn't your path' etc that's obvs fine, most people are not gay
. But then you compare it to smoking, which you don't agree with.
Then you say it's not that you don't agree but you have a different view...so you do disagree, presumably believing it's wrong?
Then you compare it to a gay person saying straight is not their thing. But if the gay person also said, as you did, that they didn't agree w being straight and had a different view, implying it was morally wrong, I'd say you could call them prejudiced, but not hetero phobic.
So are you essentially saying you think it's wrong morally you have a gay relationship but you wouldn't vote against any rights or anything?
If that is your opinion, I would say that is prejudiced, but not in the sense of hatred or fear. Is this your view though? It's not really clear.
If that is your view, I disagree strongly but it's definitely not hate speech & it's good you're not being unpleasant to anyone about it. You have the right to your opinion ofc.